Nexperia USA Inc. BZX79-C8V2,113

Overview

BZX79-C8V2,113 from Nexperia is a ±5% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 8.2 V nominal Zener voltage at 5 mA test current, 40 Ω typical differential resistance, and 700 nA reverse leakage at 5 V. It delivers stable low-power voltage reference functionality in compact analog power supply rails and signal conditioning circuits.

For engineers reviewing the BZX79-C8V2,113 datasheet, BZX79-C8V2,113 pinout, BZX79-C8V2,113 application, or BZX79-C8V2,113 equivalent, this page provides verified electrical parameters, thermal behavior, junction-to-ambient thermal resistance, temperature coefficient, and validated alternative parts for precision voltage reference design.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified Zener voltage of 8.04–8.36 V at I_Z = 5 mA, exhibiting a positive temperature coefficient of +3.2 to +6.2 mV/K across its operating current range. Its differential resistance remains ≤80 Ω at 5 mA, enabling tight regulation under varying load conditions.

Designed for low-power stabilization, it supports non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses and maintains reliable operation from −65 °C to +200 °C junction temperature, with thermal resistance R_{th j-a} = 380 K/W under standard PCB mounting conditions.

Key Specifications

Pinout & Package

Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode indicated by a colored band. Leads are tinned and suitable for through-hole soldering.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener voltage reference applications.

Compared with BZX79-C8V2,113, the BZX79-B8V2,113 offers improved voltage accuracy but identical thermal and leakage performance, while the 1N4736A trades smaller SOD27 footprint for greater power capacity and different package form factor.

Availability

BZX79-C8V2,113 is available at Aetrix Electronics and suitable for low-voltage power supply references, signal level shifting, overvoltage protection clamps, and current-sense reference circuits requiring stable component supply and long-term obsolescence resilience.

Supply support for BZX79-C8V2,113 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global leader in discrete semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive, industrial, and consumer markets.

The BZX79 series belongs to Nexperia's voltage regulator diode product line, engineered for cost-effective, stable low-power voltage referencing in space-constrained through-hole designs.

FAQ

What is the maximum continuous power dissipation for BZX79-C8V2,113?

The BZX79-C8V2,113 has a total power dissipation rating of 500 mW at ambient temperature of 50 °C with standard PCB mounting (lead length ≤8 mm). At higher ambient temperatures, derating applies per the thermal resistance of 380 K/W, limiting usable power to maintain safe junction temperature below 200 °C.

How does the temperature coefficient affect regulation accuracy?

The BZX79-C8V2,113 exhibits a positive temperature coefficient of +3.2 to +6.2 mV/K, meaning its Zener voltage increases linearly with junction temperature. For a 50 °C rise, V_Z shifts by ~200–300 mV, requiring compensation in high-precision applications or limiting use to narrow temperature ranges unless calibrated.

Can BZX79-C8V2,113 be used in surface-mount designs?

No - BZX79-C8V2,113 uses the axial-leaded SOD27 (DO-35) glass package, designed exclusively for through-hole mounting. Surface-mount alternatives include the PZM8.2NB (SOT-23) or BZX84-C8V2 (SOT-23), which share the same 8.2 V ±5% specification but differ in package, thermal performance, and leakage characteristics.

What is the significance of the 'C' suffix in BZX79-C8V2,113?

The 'C' denotes the ±5% Zener voltage tolerance grade within the BZX79 series, distinguishing it from the tighter ±2% 'B' grade. This allows cost-sensitive designs to select appropriate accuracy without over-specifying, while maintaining identical package, thermal, and dynamic characteristics across both grades.